Verb (dictionary form / ない form) + ことになっている

[It is the rule that / It has been decided that / It is customary to]

Connection: Verb (dictionary form / ない form) + ことになっている

Usage: Expresses established rules, regulations, customs, or scheduled arrangements. The decision was made by others or by convention, not by the speaker personally.

Examples:

この会社では、毎朝朝礼をすることになっている。(At this company, it is the rule to have a morning meeting every day.)

図書館では飲食しないことになっている。(It is the rule not to eat or drink in the library.)

来月、出張でアメリカに行くことになっている。(It has been arranged that I will go to America on a business trip next month.)